DCL:GRPH1:STPACK: Transformation Functions:List of Subroutines
STFTRN(UX,UY,VX,VY) Basic transformation STSTRN(ITR,CXA,CYA,VX0,VY0) Sets the parameters for basic transformation STFROT(UX,UY,TX,TY) Rotation of a map coordinate STSROT(THETA,PHI,PSI) Sets the parameters for rotation of a map coordinate STFRAD(UX1,UY1,UX2,UY2) Unit transformation of angle STSRAD(LXDEG,LYDEG) Sets parameters for unit transformation of angle.
There are also routines for inverse transformations with I as the 3rd character in the routine name, and parameter inquiry routines with Q as the 3rd character.